If x<0, then square root ( -x |x|) is:
a) -x
b) -1
c) 1
d) x
e) square root (x)
Can someone please provide an explanation?
a) -x
b) -1
c) 1
d) x
e) square root (x)
Can someone please provide an explanation?
since x is -ve (-x|x|) = x^2 ( because -x will become -(-x) and |x| is always +ve)
sq rt of x^2 =x now since our x was -ve ... hence the answer is -(-x). there fore answer should be -x ( only because it was given that x is -ve)
